STM32F0xx Standard Peripherals Firmware Library: stm32f0xx_it.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    TIM/TIM_TimeBase/stm32f0xx_it.c 
00004   * @author  MCD Application Team
00005   * @version V1.4.0
00006   * @date    24-July-2014
00007   * @brief   Main Interrupt Service Routines.
00008   *          This file provides template for all exceptions handler and 
00009   *          peripherals interrupt service routine.
00010   ******************************************************************************
00011   * @attention
00012   *
00013   * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
00014   *
00015   * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
00016   * You may not use this file except in compliance with the License.
00017   * You may obtain a copy of the License at:
00018   *
00019   *        http://www.st.com/software_license_agreement_liberty_v2
00020   *
00021   * Unless required by applicable law or agreed to in writing, software 
00022   * distributed under the License is distributed on an "AS IS" BASIS, 
00023   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00024   * See the License for the specific language governing permissions and
00025   * limitations under the License.
00026   *
00027   ******************************************************************************
00028   */
00029 
00030 /* Includes ------------------------------------------------------------------*/
00031 #include "stm32f0xx_it.h"
00032 
00033 /** @addtogroup STM32F0xx_StdPeriph_Examples
00034   * @{
00035   */
00036 
00037 /** @addtogroup TIM_TimeBase
00038   * @{
00039   */
00040 
00041 /* Private typedef -----------------------------------------------------------*/
00042 /* Private define ------------------------------------------------------------*/
00043 /* Private macro -------------------------------------------------------------*/
00044 /* Private variables ---------------------------------------------------------*/
00045 uint16_t capture = 0;
00046 extern __IO uint16_t CCR1_Val;
00047 extern __IO uint16_t CCR2_Val;
00048 extern __IO uint16_t CCR3_Val;
00049 extern __IO uint16_t CCR4_Val;
00050 /* Private function prototypes -----------------------------------------------*/
00051 /* Private functions ---------------------------------------------------------*/
00052 
00053 /******************************************************************************/
00054 /*            Cortex-M0 Processor Exceptions Handlers                         */
00055 /******************************************************************************/
00056 
00057 /**
00058   * @brief  This function handles NMI exception.
00059   * @param  None
00060   * @retval None
00061   */
00062 void NMI_Handler(void)
00063 {
00064 }
00065 
00066 /**
00067   * @brief  This function handles Hard Fault exception.
00068   * @param  None
00069   * @retval None
00070   */
00071 void HardFault_Handler(void)
00072 {
00073   /* Go to infinite loop when Hard Fault exception occurs */
00074   while (1)
00075   {
00076   }
00077 }
00078 
00079 /**
00080   * @brief  This function handles SVCall exception.
00081   * @param  None
00082   * @retval None
00083   */
00084 void SVC_Handler(void)
00085 {
00086 }
00087 
00088 /**
00089   * @brief  This function handles PendSVC exception.
00090   * @param  None
00091   * @retval None
00092   */
00093 void PendSV_Handler(void)
00094 {
00095 }
00096 
00097 /**
00098   * @brief  This function handles SysTick Handler.
00099   * @param  None
00100   * @retval None
00101   */
00102 void SysTick_Handler(void)
00103 {
00104 }
00105 
00106 /******************************************************************************/
00107 /*                 STM32F0xx Peripherals Interrupt Handlers                   */
00108 /******************************************************************************/
00109 /**
00110   * @brief  This function handles TIM3 global interrupt request.
00111   * @param  None
00112   * @retval None
00113   */
00114 void TIM3_IRQHandler(void)
00115 {
00116   if (TIM_GetITStatus(TIM3, TIM_IT_CC1) != RESET)
00117   {
00118     TIM_ClearITPendingBit(TIM3, TIM_IT_CC1);
00119 
00120     /* LED1 toggling with frequency = 73.24 Hz */
00121     STM_EVAL_LEDToggle(LED1);
00122         capture = TIM_GetCapture1(TIM3);
00123     TIM_SetCompare1(TIM3, capture + CCR1_Val);
00124   }
00125   else if (TIM_GetITStatus(TIM3, TIM_IT_CC2) != RESET)
00126   {
00127     TIM_ClearITPendingBit(TIM3, TIM_IT_CC2);
00128 
00129     /* LED2 toggling with frequency = 109.8 Hz */
00130     STM_EVAL_LEDToggle(LED2);
00131     capture = TIM_GetCapture2(TIM3);
00132     TIM_SetCompare2(TIM3, capture + CCR2_Val);
00133   }
00134   else if (TIM_GetITStatus(TIM3, TIM_IT_CC3) != RESET)
00135   {
00136     TIM_ClearITPendingBit(TIM3, TIM_IT_CC3);
00137 
00138     /* LED3 toggling with frequency = 219.7 Hz */
00139     STM_EVAL_LEDToggle(LED3);
00140     capture = TIM_GetCapture3(TIM3);
00141     TIM_SetCompare3(TIM3, capture + CCR3_Val);
00142   }
00143   else
00144   {
00145     TIM_ClearITPendingBit(TIM3, TIM_IT_CC4);
00146 
00147     /* LED4 toggling with frequency = 439.4 Hz */
00148     STM_EVAL_LEDToggle(LED4);
00149     capture = TIM_GetCapture4(TIM3);
00150     TIM_SetCompare4(TIM3, capture + CCR4_Val);
00151   }
00152 }
00153 
00154 /******************************************************************************/
00155 /*                 STM32F0xx Peripherals Interrupt Handlers                   */
00156 /*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
00157 /*  available peripheral interrupt handler's name please refer to the startup */
00158 /*  file (startup_stm32f0xx.s).                                               */
00159 /******************************************************************************/
00160 
00161 /**
00162   * @brief  This function handles PPP interrupt request.
00163   * @param  None
00164   * @retval None
00165   */
00166 /*void PPP_IRQHandler(void)
00167 {
00168 }*/
00169 
00170 /**
00171   * @}
00172   */
00173 
00174 /**
00175   * @}
00176   */
00177 
00178 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/